/*
* Conditions Of Use 
* 
* This software was developed by employees of the National Institute of
* Standards and Technology (NIST), an agency of the Federal Government
* and others.
* Pursuant to title 15 Untied States Code Section 105, works of NIST
* employees are not subject to copyright protection in the United States
* and are considered to be in the public domain.  As a result, a formal
* license is not needed to use the software.
* 
* This software is provided by NIST as a service and is expressly
* provided "AS IS."  NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY.  NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
* 
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement
*  
* .
* 
*/
/*****************************************************************************
 * PRODUCT OF PT INOVACAO - EST DEPARTMENT and Aveiro University - Portugal)   *
 *****************************************************************************/


package gov.nist.javax.sip.header.ims;


import java.text.ParseException;

import gov.nist.javax.sip.header.SIPHeader;

import javax.sip.InvalidArgumentException;
import javax.sip.header.ExtensionHeader;
import javax.sip.header.HeaderAddress;
import javax.sip.header.Parameters;


/**
 * P-Media-Authorization SIP Private Header - RFC 3313.
 * 
 * <p>Sintax:</p>
 * <pre>
 * P-Media-Authorization   = "P-Media-Authorization" HCOLON
 *                            P-Media-Authorization-Token
 *                            *(COMMA P-Media-Authorization-Token)
 * P-Media-Authorization-Token = 1*HEXDIG
 * </pre>
 * @author Miguel Freitas (IT) PT-Inovacao 
 */

public class PMediaAuthorization
	extends SIPHeader
	implements PMediaAuthorizationHeader, SIPHeaderNamesIms, ExtensionHeader
{
	
	/**
	 * Comment for <code>serialVersionUID</code>
	 */
	private static final long serialVersionUID = -6463630258703731133L;
	
	
	/**
	 *  P-Media-Authorization Token
	 */
	private String token;
	
	
	/**
	 * Constructor
	 */
	public PMediaAuthorization()
	{
		super(P_MEDIA_AUTHORIZATION);
	}
	
	
	/**
	 * Get the media authorization token.
	 * 
	 * @return token
	 */
	public String getToken()
	{
		return token;
	}
	
	
	/**
	 * Set the media authorization token.
	 * 
	 * @param token - media authorization token to set
	 * @throws InvalidArgumentException - if token is null or empty
	 */
	public void setMediaAuthorizationToken(String token) throws InvalidArgumentException
	{
		if (token == null || token.length() == 0)
			throw new InvalidArgumentException(" the Media-Authorization-Token parameter is null or empty");
		
		this.token = token;
	}

	/**
	 * Encode header
	 * @return the header content
	 */
	protected String encodeBody()
	{
		return token;
	}

	
	public void setValue(String value) throws ParseException {
		throw new ParseException (value,0);
		
	}
	
	
	public boolean equals(Object other)
	{
		if (other instanceof PMediaAuthorizationHeader)
		{
			final PMediaAuthorizationHeader o = (PMediaAuthorizationHeader) other;
			return this.getToken().equals(o.getToken());
		}
		return false;

	}

	
	public Object clone() {
		PMediaAuthorization retval = (PMediaAuthorization) super.clone();
		if (this.token != null) 
			retval.token = this.token;
		return retval;
	}
	
}
